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Finding the Fourth Proportional to 43,849.20, 65,773.80 and 40,220.40

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Solution

The fourth proportional to 43,849.20, 65,773.80 and 40,220.40 is: 60,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,849.20 : 65,773.80 = 40,220.40 : x
  2. Step 2: Convert to fraction form
    43,849.20/65,773.80 = 40,220.40/x
  3. Step 3: Cross multiply
    43,849.20x = 65,773.80 × 40,220.40
  4. Step 4: Simplify right side
    43,849.20x = 2,645,448,545.52
  5. Step 5: Solve for x
    x = 2,645,448,545.52/43,849.20
  6. Step 6: Final answer
    x = 60,330.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.